panthers have the best DT duo in the NFL so their LB are setup for success.

I agree Hagan but these thing are always difficult to quantify.
Are the LBs better because of great d-line play?
Yes, but the d-line also benefits from great LB play.
Succesful symbiotic relationships make it difficult to assign a % as to who helps the other more.
I think they should forfeit one or the other position group in the name of statistical research.
All I know is they are too damn good for my taste.